Measurement of Long-Range Near-Side Two-Particle Angular Correlations in pp Collisions at sqrt[s]=13 TeV.
نویسندگان
- V Khachatryan
- A M Sirunyan
- A Tumasyan
- W Adam
- E Asilar
- T Bergauer
- J Brandstetter
- E Brondolin
- M Dragicevic
- J Erö
- M Flechl
- M Friedl
- R Frühwirth
- V M Ghete
- C Hartl
- N Hörmann
- J Hrubec
- M Jeitler
- V Knünz
- A König
- M Krammer
- I Krätschmer
- D Liko
- T Matsushita
- I Mikulec
- D Rabady
- B Rahbaran
- H Rohringer
- J Schieck
- R Schöfbeck
- J Strauss
- W Treberer-Treberspurg
- W Waltenberger
- C-E Wulz
- V Mossolov
- N Shumeiko
- J Suarez Gonzalez
- S Alderweireldt
- T Cornelis
- E A De Wolf
- X Janssen
- A Knutsson
- J Lauwers
- S Luyckx
- M Van De Klundert
- H Van Haevermaet
- P Van Mechelen
- N Van Remortel
- A Van Spilbeeck
- S Abu Zeid
- F Blekman
- J D'Hondt
- N Daci
- I De Bruyn
- K Deroover
- N Heracleous
- J Keaveney
- S Lowette
- L Moreels
- A Olbrechts
- Q Python
- D Strom
- S Tavernier
- W Van Doninck
- P Van Mulders
- G P Van Onsem
- I Van Parijs
- P Barria
- H Brun
- C Caillol
- B Clerbaux
- G De Lentdecker
- G Fasanella
- L Favart
- A Grebenyuk
- G Karapostoli
- T Lenzi
- A Léonard
- T Maerschalk
- A Marinov
- L Perniè
- A Randle-Conde
- T Seva
- C Vander Velde
- P Vanlaer
- R Yonamine
- F Zenoni
- F Zhang
- K Beernaert
- L Benucci
- A Cimmino
- S Crucy
- D Dobur
- A Fagot
- G Garcia
- M Gul
- J Mccartin
- A A Ocampo Rios
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- C A Bernardes
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چکیده
Results on two-particle angular correlations for charged particles produced in pp collisions at a center-of-mass energy of 13 TeV are presented. The data were taken with the CMS detector at the LHC and correspond to an integrated luminosity of about 270 nb^{-1}. The correlations are studied over a broad range of pseudorapidity (|η|<2.4) and over the full azimuth (ϕ) as a function of charged particle multiplicity and transverse momentum (p_{T}). In high-multiplicity events, a long-range (|Δη|>2.0), near-side (Δϕ≈0) structure emerges in the two-particle Δη-Δϕ correlation functions. The magnitude of the correlation exhibits a pronounced maximum in the range 1.0<p_{T}<2.0 GeV/c and an approximately linear increase with the charged particle multiplicity, with an overall correlation strength similar to that found in earlier pp data at sqrt[s]=7 TeV. The present measurement extends the study of near-side long-range correlations up to charged particle multiplicities N_{ch}∼180, a region so far unexplored in pp collisions. The observed long-range correlations are compared to those seen in pp, pPb, and PbPb collisions at lower collision energies.
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عنوان ژورنال:
- Physical review letters
دوره 116 17 شماره
صفحات -
تاریخ انتشار 2016